I'm using both Google Analytics and Yottaa for my website. Yottaa bots send quite a lot a traffic (relatively to the normal traffic of my website), and thus my Google Analytics is kind of flooded by that.

I don't know how to tell Yottaa bots traffic and normal human traffic apart on Google Analytics. How to do that?

Thanks for the question! Sorry that Yottaa support missed your question. There are two ways to deal with this:
1. Just as suggested by Martin Bouladour, you can add a "filter" to filter out all traffic from "YottaaMonitor" in Google Analytics. It is a clean solution;
2. Or you can use robots.txt file. See http://www.yottaa.com/how-to/block-yottaa-monitoring.